Interdomain Routing Working Group X. Geng
Internet-Draft M. Chen
Intended status: Standards Track Huawei
Expires: January 9, 2020 Z. Li
F. Qin
China Mobile
L. Qiang
July 8, 2019
IGP-TE Extensions for DetNet Information Distributiondraft-geng-detnet-info-distribution-04
Abstract
This document extends the IGP-TE, including OSPF-TE and ISIS-TE, to
support DetNet by specifying new information that can be placed in
Link State Protocol Data Units (LSP). This information describes
additional details regarding the state of the network that are useful
for DetNet computations.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 9, 2020.
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0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD1) | Length(8) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Minimum DetNet Processing Delay |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Maximum DetNet Processing Delay |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Maximum DetNet Processing Delay Variation |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 2 octets in length, and the value is TBD1.
The Length field is 2 octets in length and its value is 8.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
The Minimum DetNet Processing Delay field is 3 octets, and presents
the minimum delay for a DetNet flow in the device, excluding the
queuing delay in output port. The units are microsecond.
The Maximum DetNet Processing Delay field is 3 octets, and presents
the maximum delay for a DetNet flow in the device, excluding the
queuing delay in output port. The units are microsecond.
The Maximum DetNet Processing Delay Variation field is 3 octets in
length, and presents the maximum delay variation for a DetNet flow in
the device, excluding the queuing delay in output port. The units
are microsecond.
3.1.2. PREOF Capability Sub-TLV
PREOF (Packet Replication/Elimination/Ordering Function) is for
DetNet service protection, which includes:
o In-order delivery function: defined in Section 3.2.2.1 of
[I-D.ietf-detnet-architecture]
o Packet replication function: defined in Section 3.2.2.2 of
[I-D.ietf-detnet-architecture]
o Packet elimination function: defined in Section 3.2.2.3 of
[I-D.ietf-detnet-architecture]
This sub-TLV specifies a set of PREOF capabilities and relevant
parameters at node granularity. PREOF can also be advertised as Link
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attribute (section 3.2.3), when not all of the ports in the node
support PREOF.
The format of this sub-TLV is shown in the following diagram:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD4) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | Maximum out-of-order Packet Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 2 octets in length, and the value is TBD4.
The Length field is 2 octets in length and its value is 4.
The Flags field is 1 octet in length, and it is designed as follows:
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
|R|E|O| |
+-+-+-+-+-+-+-+-+
where:
o R-flag: replication-capability flag, which indicates whether a
node has the packet replication capability.
o E-flag: elimination-capability flag, which indicates whether a
node has the packet elimination capability
o O-flag: in-order-capability, which indicates whether a LTP has the
in-order delivery capability
Maximum out-of-order Packet Number field is 3 octet in length, and
presents the maximum number of out-of-order packets that this link
can support, it depends on the reserved buffer size for packet
reordering. This value is valid only when the O-flag is set.
Editor' note: Maximum Replicated Copies number may be added in the
future version.
3.2. DetNet Link Attributtes Advertisement
New OSPF DetNet sub-TLVs for Link TLV are defined to distribute
DetNet information of a link. These sub-TLVs include:
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______________________________________________________________
| Type | Length | Value |
|------------------------------------------------------------|
| TBD2 | 4 | Max DetNet Reservable Bandwidth |
| TBD3 | 4 | DetNet Available Bandwidth |
| TBD4 | 4 | PREOF Capability |
| TBD5 | 4 | Queuing Algorithm Capabilities |
| TBD6 | 10 | Queue Parameters |
|________|_______________|___________________________________|
3.2.1. Max DetNet Reservable Bandwidth Sub-TLV
This sub-TLV specifies the maximum amount of bandwidth that is
reserved for DetNet on this link. Note that this value SHOULD be
smaller than the value of Maximum Reservable Bandwidth sub-TLV
[RFC3630]. The value normally depends on the queuing management
algorithm and is user-configurable. In some particular queuing
management algorithm (e.g. Credit Based shaper in AVB), this value
will affect the calculation of maximum queuing delay of the DetNet
flow. The units are bytes per second.
The format of this sub-TLV is shown in the following diagram:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD2) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Maximum DetNet Reservable Bandwidth |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 2 octets in length, and the value is TBD2.
The Length field is 2 octets in length and its value is 4.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
This Maximum DetNet Reservable Bandwidth field is 3 octets in length,
and presents the maximum bandwidth that may be reserved for DetNet.
The units are bytes per second.
3.2.2. DetNet Available Bandwidth Sub-TLV
This sub-TLV specifies the available bandwidth that can be reserved
for DetNet flow on this link for now. Considering that there is no
generally accepted DetNet traffic classification, this value contains
all the available DetNet Bandwidth from different DetNet traffic
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classes (if there is any), which differs from the Unreserved
Bandwidth defined in [RFC3630].
The format of this sub-TLV is shown in the following diagram:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD3) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Available DetNet Bandwidth |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 2 octets in length, and the value is TBD3.
The Length field is 2 octets in length and its value is 4.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
This Available DetNet Bandwidth field is 3 octets in length, and
presents the available bandwidth for DetNet in this link. The units
are bytes per second.
3.2.3. PREOF Capability Sub-TLV
PREOF (Packet Replication/Elimination/Ordering Function) is for
DetNet service protection, which includes :
o In-order delivery function: defined in Section 3.2.2.1 of
[I-D.ietf-detnet-architecture]
o Packet replication function: defined in Section 3.2.2.2 of
[I-D.ietf-detnet-architecture]
o Packet elimination function: defined in Section 3.2.2.3 of
[I-D.ietf-detnet-architecture]
This sub-TLV specifies a set of PREOF capabilities and relevant
parameters at link granularity. PREOF can also be advertised as node
attribute (section 3.1.2), when all of the ports in the node support
PREOF.
The format of this sub-TLV is shown in the following diagram:
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0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD5) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | RESERVED |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 2 octets in length, and the value is TBD5.
The Length field is 2 octets in length and its value is 4.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
The Flags field is 1 octet in length, and it is designed as follows:
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
|C|T|H|A| |
+-+-+-+-+-+-+-+-+
where:
o C-flag: CBS flag, which indicates whether a link can support Time
Aware Shaping [IIEEE802.1Qbv].
o T-flag: TAS flag, which indicuate whether a link can support
Credit Based Shaper [IEEE802.1Q-2014]
o H-flag: CQF flag, which indicuate whether a link can support
Cyclic Queuing and Forwarding [IEEE802.1Qch]
o A-flag: ATS flag, which indicuate whether a link can support
Asynchronous Traffic Shaping [IEEE802.1Qcr]
3.2.5. DetNet Queue Sub-TLV
In the context of DetNet, the delay of queuing is bounded, and the
bound depends on what queuing management method is used and how many
buffers are allocated. This sub-TLV specifies the DetNet queue
parameters.
The format of this sub-TLV is shown in the following diagram:
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0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD6) | Length(10) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Queue Identifier | Queue Buffer Size |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | Maximum Queuing Delay |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Minimum Queuing Delay |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Maximum Queuing Delay Variation |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 2 octets in length, and the value is TBD6.
The Length field is 2 octets in length and its value is 10.
The Queue Identifier field is 3 octets in length, and specifies the
identifier of a queue. It could be an internal identifier that is
only used within a node. Or it could be used by a centralized
controller to specify in which specific queue a flow/packet is
required to enter.
The Queue Buffer Size field is 3 octets in length, and specifies the
size of a queue with unit of bytes.
The Flags field is 1 octet in length, and it is designed as follows:
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
|C|T|H|A| |
+-+-+-+-+-+-+-+-+
where:
o C-flag: CBS flag, which indicates whether a link can support Time
Aware Shaping [IIEEE802.1Qbv].
o T-flag: TAS flag, which indicuate whether a link can support
Credit Based Shaper [IEEE802.1Q-2014]
o H-flag: CQF flag, which indicuate whether a link can support
Cyclic Queuing and Forwarding [IEEE802.1Qch]
o A-flag: ATS flag, which indicuate whether a link can support
Asynchronous Traffic Shaping [IEEE802.1Qcr]
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The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
Minimum Queuing Delay is 3 octets in length, and carries minimum
queuing delay value (in microseconds) encoded as an integer value.
Implementations may also add this to the value of Min Delay
Unidirectional Link Delay Sub-TLV [RFC7471] in order to advertise the
minimum delay of this link. Min Queuing Delay can be the same with
the Max Queuing Delay.
Maximum Queuing Delay is 3 octets in length, and carries the maximum
queuing delay value (in microseconds) encoded as an integer value.
Implementations may also add this to the value of Max Delay
Unidirectional Link Delay Sub-TLV [RFC7471]to order to advertise the
maximum delay of this link.
Maximum Queuing Delay variation is 3 octets in length, and carries
the maximum queuing delay variation value (in microseconds) encoded
as an integer value.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
4. DetNet Extensions to ISIS TE
This document defines an extension to IS-IS used to advertise DetNet
information.
4.1. DetNet Node Attributes Advertisement
The DetNet node sub-TLVs are defined within the body of the IS-IS
Router Capability TLV [RFC7981] to carry DetNet information.
4.1.1. DetNet Processing Delay Sub-TLV
This sub-TLV specifies the DetNet packet porcessing parameters. The
reader can know more about this sub-TLV referring to section 3.1.
The format of this sub-TLV is shown in the following diagram:
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The Type field is 1 octets in length, and the value is TBD10.
The Length field is 1 octets in length and its value is 4.
The Flags field is 1 octet in length, and it is designed as follows:
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
|R|E|O| |
+-+-+-+-+-+-+-+-+
where:
o R-flag: replication-capability flag, which indicates whether a
node has the packet replication capability.
o E-flag: elimination-capability flag, which indicates whether a
node has the packet elimination capability
o O-flag: in-order-capability, which indicates whether a LTP has the
in-order delivery capability
Maximum out-of-order Packet Number field is 3 octets in length and
presents the maximum number of out-of-order packets that this link
can support, it depends on the reserved buffer size for packet
reordering. This value is valid only when the O-flag is set.
Editor' note: Maximum Replicated Copies number may be added in the
future version.
4.2. DetNet Link Attributes Advertisement
This document defines new IS-IS TE sub-TLVs that can be announced in
the TLVs 22, 23, 141, 222, and 223 in order to distribute DetNet
information. The sub-TLV extensions below build on the ones provided
in [RFC5305], [RFC5316]and [RFC7310]
4.2.1. Max DetNet Reservable Bandwidth Sub-TLV
This sub-TLV specifies the maximum amount of bandwidth that is
reserved for DetNet on this link. Note that this value SHOULD be
smaller than the value of Maximum Reservable Link Bandwidth
[RFC5305]. The reader can know more about this sub-TLV referring to
section 3.2.
The format of this sub-TLV is shown in the following diagram:
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0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD8) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Maximum DetNet Reservable Bandwidth |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 1 octets in length, and the value is TBD8.
The Length field is 1 octets in length and its value is 4.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
This Maximum DetNet Reservable Bandwidth field is 3 octets in length
and presents the maximum bandwidth that may be reserved for DetNet.
The units are bytes per second.
4.2.2. DetNet Available Bandwidth Sub-TLV
This sub-TLV specifies the available bandwidth that can be reserved
for DetNet flow on this link for now. It is different from the
Unreserved Bandwidth sub-TLV defined in [RFC5305] referring to
section 3.3.
The format of this sub-TLV is shown in the following diagram:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD9) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| RESERVED | Available DetNet Bandwidth |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 1 octets in length, and the value is TBD9.
The Length field is 1 octets in length and its value is 4.
The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
This Available DetNet Bandwidth field is 3 octets in length and
presents the available bandwidth for DetNet in this link. The units
are bytes per second.
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Internet-Draft DetNet Info Distribution July 20194.2.3. PREOF Capability Sub-TLV
This sub-TLV specifies a set of PREOF capabilities and relevant
parameters in sub-TLV. The reader can know more about this sub-TLV
referring to section 3.4.
The format of this sub-TLV is shown in the following diagram:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD10) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | Maximum out-of-order Packet Number |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 1 octets in length, and the value is TBD10.
The Length field is 1 octets in length and its value is 4.
The Flags field is 1 octet in length, and it is designed as follows:
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
|R|E|O| |
+-+-+-+-+-+-+-+-+
where:
o R-flag: replication-capability flag, which indicates whether a
link has the packet replication capability.
o E-flag: elimination-capability flag, which indicates whether a
link has the packet elimination capability
o O-flag: in-order-capability, which indicates whether a LTP has the
in-order delivery capability
Maximum out-of-order Packet Number field is 3 octets in length and
presents the maximum number of out-of-order packets that this link
can support, it depends on the reserved buffer size for packet
reordering. This value is valid only when the O-flag is set.
Editor' note: Maximum Replicated Copies number may be added in the
future version.
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Internet-Draft DetNet Info Distribution July 20194.2.4. Queuing Algorithm Capability Sub-TLV
This sub-TLV specifies queuing management algorithms capabilities to
gaurante bounded queuing latency [I-D.finn-detnet-bounded-latency].
The format of this sub-TLV is shown in the following diagram:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type(TBD11) | Length(4) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Flags | RESERVED |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The Type field is 1 octets in length, and the value is TBD11.
The Length field is 1 octets in length and its value is 4.
The Flags field is 1 octet in length, and it is designed as follows:
0 1 2 3 4 5 6 7 8
+-+-+-+-+-+-+-+-+
|C|T|H|A| |
+-+-+-+-+-+-+-+-+
where:
o C-flag: CBS flag, which indicates whether a link can support Time
Aware Shaping [IIEEE802.1Qbv].
o T-flag: TAS flag, which indicuate whether a link can support
Credit Based Shaper [IEEE802.1Q-2014]
o H-flag: CQF flag, which indicuate whether a link can support
Cyclic Queuing and Forwarding [IEEE802.1Qch]
o A-flag: ATS flag, which indicuate whether a link can support
Asynchronous Traffic Shaping [IEEE802.1Qcr]
4.2.5. DetNet Queue Sub-TLV
In the context of DetNet, the delay of queuing is bounded, and the
bound depends on what queuing management method is used and how many
buffers are allocated. This sub-TLV specifies the DetNet queue
parameters.
The format of this sub-TLV is shown in the following diagram:
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The RESERVED field is reserved for future use. It MUST be set to 0
when sent and MUST be ignored when received.
Minimum Queuing Delay is 3 octets in length and presents minimum
queuing delay value (in microseconds) encoded as an integer value.
Implementations may also add this to the value of Min Delay
Unidirectional Link Delay Sub-TLV [RFC7471] in order to advertise the
minimum delay of this link. Min Queuing Delay can be the same with
the Max Queuing Delay.
Maximum Queuing Delay is 3 octets in length and presents the maximum
queuing delay value (in microseconds) encoded as an integer value.
Implementations may also add this to the value of Max Delay
Unidirectional Link Delay Sub-TLV [RFC7471]to order to advertise the
maximum delay of this link.
Maximum Queuing Delay variation is 3 octets in length and presents
the maximum queuing delay variation value (in microseconds) encoded
as an integer value.
5. IANA Considerations5.1. Sub-TLVs for OSPF Node Attribute TLV
IANA is requested to register the OSPF sub-TLVs defined in this
document in the sub-TLVs for Node Attribute TLV registry.
Type Description
---- ------------------------------
TBD1 Packet Processing Delay
TBD2 PREOF Capability
5.2. Sub-TLVs for OSPF Link TLV
IANA is requested to register the OSPF sub-TLVs defined in this
document in the sub-TLVs for Link TLV registry.
Type Description
---- ------------------------------
TBD3 Maximum DetNet Reservable Bandwidth
TBD4 DetNet Available Bandwidth
TBD5 PREOF Capability
TBD6 Queuing Algorithm Capabilities
TBD7 Queue Parameters
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